AUDI eSelf Study Program 970343 The 2015 Audi A3 Vehicle Electronics and Driver Assistance Systems.pdf

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eSelf Study Program 970343
The 2015 Audi A3 Vehicle Electronics
and Driver Assistance Systems
2
Audi of America, LLC
Service Training
Created in the U.S.A.
Created 11/2013
Course Number 970343
©2013 Audi of America, LLC
All rights reserved. Information contained in this manual is based on
the latest information available at the time of printing and is subject to
the copyright and other intellectual property rights of Audi of America,
LLC., its affiliated companies and its licensors. All rights are reserved
to make changes at any time without notice. No part of this document
may be reproduced, stored in a retrieval system, or transmitted in any
form or by any means, electronic, mechanical, photocopying, recording
or otherwise, nor may these materials be modified or reposted to other
sites without the prior expressed written permission of the publisher.
All requests for permission to copy and redistribute information should
be referred to Audi of America, LLC.
Always check Technical Bulletins and the latest electronic service repair
literature for information that may supersede any information included
in this booklet.
Revision 1: 11/2013
3
Contents
Introduction ....................................................................................... 6
Topology the 2015 Audi A3 .................................................................................................................7
Vehicle electronics .............................................................................. 9
Door electronics ..................................................................................................................................11
Vehicle Electrical System Control Module J519 ...............................................................................16
Electronic Steering Column Lock Control Module J764 ...................................................................20
Access/Start Authorization Control Module J518 ............................................................................21
Advanced Key ......................................................................................................................................22
Terminal management .......................................................................................................................25
Interior lighting ..................................................................................................................................29
Driver assistance systems .................................................................34
Rearview Camera R189 ......................................................................................................................34
Audi parking system ...........................................................................................................................36
Audi side assist ...................................................................................................................................37
Driver Assistance Systems Front Camera R242 ...............................................................................39
Audi lane assist and active lane assist ..............................................41
Overview ..............................................................................................................................................41
Further development .........................................................................................................................41
Active lane assist ................................................................................................................................42
Audi steering intervention .................................................................................................................43
Operation .............................................................................................................................................44
Self Study Programs .........................................................................45
Knowledge Assessment ...................................................................46
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This eSelf Study Program teaches a basic knowledge of the design and functions of new models,
new automotive components or technologies.
It is not a Repair Manual! All values given are intended as a guideline only.
For maintenance and repair work, always refer to the current technical literature.
Note
Reference
5
Introduction
Today, Audi is already setting new standards for driver
assistance systems in the A3 – introducing technologies
from the luxury class into the premium compact segment.
Several optional systems and one standard solution are
offered in the new 2015 Audi.
The optional Audi side assist supports the driver in chang-
ing lanes. From a vehicle speed of 18 mph (30 km/h ),
radar sensors at the rear monitor what is happening behind
and to the sides of the A3. A yellow LED in the door mirror
housing lights if another vehicle is driving in the blind spot
or is rapidly approaching from the rear. If the driver still
activates the turn signal for a lane change, the indicator
turns bright and flashes at a high frequency – a very effec-
tive warning signal.
Audi active lane assist becomes active at a speed of 40 mph
(65 km/h). It detects lane markings on the roadway based
on images from a small video camera mounted on the
rear-view mirror. If the vehicle approaches a lane marking
without activating the turn signal, the system assists the
driver in steering back into the lane by making a slight
intervention in the electromechanical power steering
system.
Of the optional driver assistance systems in the new A3,
adaptive cruise control (ACC) is the most complex. This
radar-based system maintains the desired distance to the
vehicle ahead by autonomously accelerating and braking
within certain limits over speeds ranging from 18 – 93 mph
(30 to 150 km/h). The driver can set the distance and the
control dynamics over four levels. If the car has the assis-
tance package, which combines several systems, the
control range is extended to 125 mph (200 km/h).
In the North American region vehicles, the system inter-
venes just before crossing over a detected lane marking.
This function can help to prevent the car from leaving the
driving lane unintentionally, for example, due to driver
inattentiveness.
This new generation of lane-keeping assistance can offer
continuous relief to the driver, enhancing driving comfort.
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